And I've same problem again.
Duygu D. <duygudemirpe...@gmail.com>, 1 Eki 2021 Cum, 17:12 tarihinde şunu
yazdı:
> Hello,
> I download lwip 2.1.2 (last version) in here. Replace with my lwip files.
> And I added my lwipopt.h, and user_config.h file.
>
>
> Duygu D. <duygudemirpe...@gmail.com>, 1 Eki 2021 Cum, 16:36 tarihinde
> şunu yazdı:
>
>> Hello,
>> Thank you for your reply.
>> I couldnt find anywhere p->len is 576, I checked mbedtls's bio_send
>> function I see 136 bytes. I dont know 576 where come from.
>> I am a new developper so how can I analyse this "Or your driver might be
>> sending zero-copy but the packets get changed
>> between being enqueued and actually sending them" sorry for my ignorance
>> Best Regards.
>>
>> goldsi...@gmx.de <goldsi...@gmx.de>, 1 Eki 2021 Cum, 15:42 tarihinde
>> şunu yazdı:
>>
>>> Am 01.10.2021 um 13:40 schrieb Duygu D.:
>>> > [..]
>>> > When I checked the low_level_output functions I get sending data bytes
>>> > 150 byte but Ipv4 length shows us 576 byte, opt.h file set as default
>>> > but if I changed TCP_MSS as a 250 byte so I can send 136 byte and Ipv4
>>> > packet lenght shows me 136. But does not make sense. I couldnt do
>>> > successful handshaking. Lwip takes care of the IP part if I send the
>>> > another IP based packet (like icmp) packet with different sizes. I
>>> didnt
>>> > get IPv4 packet length error.
>>> > I only have this error when I used mbedtls. How can I find the problem?
>>>
>>> One error I can think of here is that your driver might send packets
>>> using 'p->len' instead of iterating over all pbufs ('p->tot_len',
>>> iterate over all 'p->next').
>>>
>>> Or your driver might be sending zero-copy but the packets get changed
>>> between being enqueued and actually sending them?
>>>
>>> Regards,
>>> Simon
>>>
>>> _______________________________________________
>>> lwip-users mailing list
>>> lwip-users@nongnu.org
>>> https://lists.nongnu.org/mailman/listinfo/lwip-users
>>
>>
>>
>> --
>> Embeded System Engineer
>>
>>
>
> --
> Embeded System Engineer
>
>
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Embeded System Engineer
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